Chop vegetables and place on a large, rimmed baking sheet lined with Glad™ Standard Aluminum Foil. Pat chicken piece dry and place onto the baking sheet.
In a small bowl, whisk together olive oil, garlic, rosemary, paprika, onion powder, red pepper flakes, and salt and pepper. Pour over the vegetables and chicken. Toss with your hands to evenly coat vegetables and chicken in the oil mixture.
Place chicken parts skin side up and spread them out evenly in the pan. Arrange vegetables around the chicken, placing chicken on top of vegetables if needed.
Bake uncovered for 30-40 minutes, or until chicken is cooked and juices run clear. Vegetables should be softened and potatoes fork-tender.
Remove from oven and garnish with additional chopped fresh rosemary, if desired.